黄金
黃金
황금
GOLD JOURNAL
2014年
6期
62-66
,共5页
唐平宇%郭秀平%王素%李龙飞%高璐
唐平宇%郭秀平%王素%李龍飛%高璐
당평우%곽수평%왕소%리룡비%고로
难选金矿%尼尔森选矿机%组合捕收剂%重选-浮选联合工艺
難選金礦%尼爾森選礦機%組閤捕收劑%重選-浮選聯閤工藝
난선금광%니이삼선광궤%조합포수제%중선-부선연합공예
refractory gold ore%Nelson processing machine%combined collector%gravity-flotation process
针对河北某金矿矿石自然金粒度大小不等、嵌存状态复杂的特点,采用尼尔森重选-浮选工艺流程回收金取得了较为理想的指标。尼尔森选矿机处理一段磨矿产品回收中粗粒金,获得品位291 g/t、回收率26.71%的重选金精矿。尼尔森中矿并入尾矿一起再磨至-0.074 mm占85%,以丁基黄药和M-钠盐组合捕收剂强化金的浮选,获得品位122.7 g/t、回收率62.35%的浮选金精矿,金总回收率达到89.06%。相比单一浮选流程,金回收率提高3.57%。
針對河北某金礦礦石自然金粒度大小不等、嵌存狀態複雜的特點,採用尼爾森重選-浮選工藝流程迴收金取得瞭較為理想的指標。尼爾森選礦機處理一段磨礦產品迴收中粗粒金,穫得品位291 g/t、迴收率26.71%的重選金精礦。尼爾森中礦併入尾礦一起再磨至-0.074 mm佔85%,以丁基黃藥和M-鈉鹽組閤捕收劑彊化金的浮選,穫得品位122.7 g/t、迴收率62.35%的浮選金精礦,金總迴收率達到89.06%。相比單一浮選流程,金迴收率提高3.57%。
침대하북모금광광석자연금립도대소불등、감존상태복잡적특점,채용니이삼중선-부선공예류정회수금취득료교위이상적지표。니이삼선광궤처리일단마광산품회수중조립금,획득품위291 g/t、회수솔26.71%적중선금정광。니이삼중광병입미광일기재마지-0.074 mm점85%,이정기황약화M-납염조합포수제강화금적부선,획득품위122.7 g/t、회수솔62.35%적부선금정광,금총회수솔체도89.06%。상비단일부선류정,금회수솔제고3.57%。
Considering the characteristics of different sized native gold and complex embedding conditions of one gold ore,Nelson gravity-flotation process is used to recover gold and achieves satisfactory results .Nelson processing machinery treats the first-stage grinding products and recovers medium and large sized gold particles ,obtaining gravity separation gold concentrates with grade of 291 g/t and recovery rate of 26.71 %.Nelson middlings are mixed with tailings and together grinded to 85 % -0.074 mm.Combined collector of Butyl Xanthate and M-sodium salt is used to enhance gold flotation,obtaining flotation gold concentrates with grade of 122.7 g/t and recovery rate of 62.35%. Overall gold recovery rate reaches 89.06%and compared to single flotation process ,gold recovery rate is increased by 3 .57 %.